Attachment for head sets



Sept. 8, 1925. l 552 593 H. P. CHILDRESS ATTACHMENT FOR HEAD SETS FiledDec. 8, 1925 INVENTOR @Bahizmmes ATTO R N EY Patented Sept. 8, 1925.

UNITED STATES PATENT OFFICE. v

HENDERSON P. CHILDRESS, 0F MEMPHIS, TENNESSEE.

ATTACHMENT FOR HEAD SETS.

Application filed December 8, 1923. Serial No. 679,370.

To all whom it may concern:

Be it known that I, HENDERSON P. CHIL- DREss, a citizen of the UnitedStates, residing at Memphis, in the county of Shelby and State ofTennessee, have invented a new and useful Attachment for Head Sets, ofwhich the following is a specification.

This invention relates to an attachment for head sets such as are usedby telephone operators, and also in connection with radio receivinginstruments to support the receivers against the ears of the personreceiving the message.

In devices of this kind, the head band frequently causes the receiversto exert considerable pressure on the ears, so that the continued usethereof becomes painful. Then too, a head band which lits the head ofone person may not lit that of another, and in the case of radioreceivers, which are frequently used by a great number of diEer'- entpersons, it becomes particularly desirable to have some means of quicklyadjusting the normal width of the head band and adapting it to differentpersons.

The general object of the present invention is to provide a practicaldevice, which may be easily manipulated to adjust the receivers for useunder different conditions, and relieve the pressure on the ears withoutremoving the device from the head. The invention is in the nature of anattachment, which may be applied to any ofthe usual types of head setsin a few moments even by an inexperienced person.

The present invention is related to my application No. 639,871., liledMay 18, 1923, and is generic to the construction therein shown.

The principles of the invention will be best understood from thefollowing detailed description, in which reference is made to theaccompanying drawing showing the preferred construction of theinvention.

In the drawing: v

Figure 1 is a front elevation of a head set having my invention attachedthereto.

Figure 2 is a vertical sectional View taken longitudinally of theattachment.

Figure 8 is a detail sectional view taken on the line 33 of Figure 2.

Figure 4 is a detail perspective view of one of the threaded stems bymeans of which the adjustment of the device is affected.

Figure 5 is detail perspective View Showing aV modified form of theattaching member.

The invention, as sho-wn, is' applied to an ordinary head set, whichincludes a band 5 adapted to embrace the upper portion of the head, andterminating in collars 6 in which the stems 7 are mounted for verticaladjustment. These stems are formed with yokes 8 at their lower ends, inwhich are mounted the respective receivers 9. Each of the stems 7 isheld in its position of adjustment by a lock nut V10, and usually asmall knob 11 is threaded to the upper 'end of the stem to prevent'thesame from being entirely separated from the head band.

The attachment includes a pair of oppositely curved attaching members12, each having suitable means of attachment to the correspondingreceiver stem 7 at each side of the collar 6. In the form shown inFigures l, 2 and 3, the members 7 and 12 are secured together by meansof clamps, each of which includes a pair of spaced transverse strips 13spanning the members 7 and 12, and having opposed concave portions 141adapted to grip the respective members 7 and 12 between them. A smallbolt 15, or equivalent means may be provided for securing the clamp. Thelower end of themember 12 may be upset, as shown at 16, so as to preventthe clamps from slipping olf.

The upper inner ends of the members 12 have inwardly extending threadedstems 17 pivotally connected thereto. Any form of pivotal connection maybe used, that herein shown consisting of a pin 18 extending from the endof the stem 17, through an eye in the end of the member 12, and havingits end upset tov form a permanent connection. The threaded portions ofthe stems 17 are connected by a-turnbuckle 20 for adjusting them to andfrom each other.

In the modification shown in Figure 5, the attaching member 12a has` itslower end turned laterallyto form a horizontally disposed ear 21, whichis perforated, as at 20, to receive the stem 7. A secondear 23isattached to the member 12El by riveting or welding, and is spacedvertically above the .car 21 and parallel thereto, and is also providedwith a perforation 24 for receiving the upper portion of the stem 7.

cluding` a head band, stems mounted for vertical adjustment in the endsof the band, and receivers supported by the stems, of an attachmentcomprising a pair of members having means independent of the band forengaging the receiver supporting stems at spaced points, threaded stemspivotally connected with the respective members, and threaded meanscooperating with said threaded stems for rocking said members to adjustsaid receiver supporting elements about their connections with the headband as fulcrums.

l0. An attachment for a head set having a head band with receiversupporting Stems mounted in the ends thereof, said attachment comprisinga pair of members, each having a pair of laterally extending perforatedears parallel to and spaced from each other and adapted to receive thereceiver supporting stem on opposite sides ofits connection with thehead band, threaded stems pivotally connected with the respectivemembers, and a turnbuckle operatively connected with said threadedstems.

11. A head support of the character described comprising a head band,stems mounted in the ends thereof for supporting the receivers, andmeans connecting the stems independent of the head band and operable torock said stems simultaneously in opposite directions about their pointsof connection to the ends of the head band, to move the receivers towardand away from each other.

l2. A head support of the character described comprising a head band,stems mounted for vertical adjustment in the ends of the band, and meansindependent of the head band for rocking the stems about theirconnections with the head band to adjust the relative angular relationthereof.

13. A head support of the character described comprising a flexible headband, stems mounted in the ends thereof for supporting the receivers,and means independent of the head band for simultaneously rocking thestems in opposite directions and flexing the band to move the receiverstoward or away from each other.

14. A head support of the character described comprising a head band,stems mounted in the ends thereof for supporting the receivers, andmeans connecting the -stems independently of the head band and includingtwo members connected by a turnbuckle operable to rock the stemssimultaneously in oppositev directions to vary the distance between thereceivers.

l5. The combination with'a head set, comprising a head band and stemsmounted in the ends thereof for supporting the receivers, of anattachment comprising spaced members adapted to embrace the head, clampsfor removably securing said members to the corresponding receiver stemsat each side of their connection with the head band, and means to movethe upper ends of said members toward or away from each, other to adjustthe receivers toward or away from the ears.

16. An attachment for a head set, comprising a pair of opposed membersprovided with connecti-ons for detachably engaging the receiver stems onthe head set, the upper portions of said members being curved inwardlyand having pivoted ends which are threaded right and left respectively,and a turnbuckle cooperating with said ends and adjustable to move thereceivers of the head set away from the ears of the operator to relievethe pressure thereon.

17. An attachment for a head set, comprising a pair of members havingcurved portions, means for detachably securing said members to thereceiver stems of the head set with the curvedjportions in opposedrelation to each other and adapted to overhang the head of the operatorindependently of the head band of the head set, end portions pivoted tothe ends of the curved portions and threaded right and leftrespectively, and a turnbuckle connected with the threaded ends andadjustable to relieve the pressure on the ears of the operator.

In testimony, that I claim the foregoing as my owns I have heretoaffixed my signature.

HENDERSON P. CHILDRESS.

